Agree with all of the above - The Triggered Lightning screens do make for very 'dynamic' planning, hence you might find your flight can be cancelled and another not too far away could still be possible.
Worth bearing in mind that despite the scary videos and information bulletins, whilst lightning is something to be avoided for sure, the net result of a strike is typically very benign. The helicopters are designed to take a lightning strike and dissipate the energy, allowing it to flow through and exit the aircraft harmlessly.
Still, for the operator there is a very expensive investigation and engineering process afterwards. They used to talk about $2m a strike about 10 years ago. Not sure if that's based on any actual fact or just something engineers would say to make us feel bad!